Method of coating



Nov. 3, 1931. F METZ 1,830,236

METHOD OF COATING Filed Dec. 22, 1928 INVENTOR Qeor 827111 8232:

WLk 5 PM; mm;

Patented Nev. 3,1931" 1,830,236

t me!) STATES PATENT OFFICE,

QEORGE I. METZ, OF YONKERS, NEW YORK METHOD OF COATING Application filedDecember 22,1928, Serial No. 327,855.

My present invention relates to an imteristic pencil to which thecoating may be I provement in the method of covering devices applied.

of various forms, such as pen handles, 'pen- Fig. 4 is an end view of acoating cylinder cils'ofthe common and automatic type, and in one stageof application to a pencil.

similar articles, with an ornamental and Fig. 5 discloses said cylinder,in another durable Coating of celluloid. s ageol a gphcation.

In some respects the improvement herein It w1ll e understood that, whileI have is analogous to my improvement in process of herein disclosed anddescribed pencils and coating articles of manufacture as describedyhndrlp l dsvlces as Objects to be Coated,

J in my coending United States patent all: any article may becoatedwhether it be of pli ation fia1N ,-218,493, fil d S t b rcylindrlcal or non-cylindrical section, such 9,1927, assquare, hex,oval, or such form as will per- One of the objects, aside from thecreation mlt a single sheet of covering material to be of rnamentalcovering effects upon objects SGIf-JOIIIGCl 01 united at ltS edges t0form'an i f l t enumerated above i t encompassing covering for thepurposes vide a covering upon such objects whereby hereln s r h. to takeadvantage of certain shrinkages of g- 3 I have disclosed a common formthe coating material, in instances wherea d magazine pencil 1, havingthe single flat sheet of the covering'mate'rial is mam barrel P 32 2thereof made 0 a tiL' d as ill b more f ll tli d h phenolic condensationsubstance, the other inafter, to enhance the fixing of the coating p p$11611 as the f ng end 3 nd the upon the article to which it is applied,withmagszlne 9 the mampulatmg end 4 being out the use of a cementbetween the coating made of filllshefl grl and the article being coated.This is of dis- The barrel 1 S1 prV10I1s and not aflected tinctadvantage where the articles being y cements, Water .aclds and the like-3 17 coated are impervious to such cements or adbarrels m y be made 9 yc0101? scheme, hesives, or have no aflinity therefor, thus oblly, 11 hepresentlnstance of a cheaply Viating the tendency of the coating to p eltamed filler, and when the article is assemfrom the article.

hAnother Object is to f {h use f :al celluloid finish, the followingsteps are 0 ea rades of material or formin the f the article b i t d d EA lar e flat sheet of celluloid, or its equivafter ivin the articleacoatin of firml ad-. alsnt, 0 stock dimensions is cut into a P hering.att active finish. a Y y rality of Smaller sheets Figthe dimell'"Another ob'ect is to provide a finish which sion of h Width A beingSufficient to roll i beiqliicg and economically applied to around orenclose with edge to edge abutment ;uc artic es. Thes Objects and otheradvantages will tour 2 of the desired article 1. The edges 6 )e"apprehended as the herein description andzare scarfedr.ang1ed P to q)roceeds, and it is obvious that modifications ggfiggzfi -z gfi ig iggfii g S it if the herein descrlbed method and article bein ag g s h lnay be made without departing from the to gn g z g gi 0 plnttflhereof orof t The length B of the sheet 5 is of suflicient accompanymg wpgsd1mension to suit the longitudinal exterior e is sheet of costlng 111surface of the article being coated, as. at C, rs pec 1ve..

u u c I v 3. i I i Fig. 2 1s a simllar view of the same in rolledflaving' thus prepared the covering sheets arm. as to exterior surfacecovering proportions, Fig. 3 1s a longitudinal view of a characthe nextstep is to soften the stifl" sheet of 15 3, the sheet 25 that, ineffect, when the 5 the celluloid,

i 45 Thereafter 10 shown in Figs. 2, 4 and 5.

After softening of the sheet has been accomplished the device may belaid upon the flat softened sheet and, where the object or device to becovered is cylindrical as in Fig. 5 is rolled around and about thecylindrical surface and encompasses the surface of'the barrel, asindicated by the dotted lines'8, Fig.- 3, and the scarfed edges 6 and 7are touched along their scarfed faces with 0 a suitable celluloid cementwhich perm anently locks the quill 8 upon the barrel 2. Owing to thesoftening effect of the alcohol upon the sheet 5 prior to rolling, thesheet expands slightly in all of its dimensions so sheet 5 is blankedand scarfed, as above described, due allowance must be made for theexpansion by making the blank slightly smaller than is actuallyrequired, sothat when rolled about the barrel 3o 2, the scarfed edgeswill match perfectly as at 6 and 7, Figs. 4 and 5, and be in reasonablemechanical engagement with the surface 2.

, The article thus coated is then laid aside and as the alcoholgradually evaporates from the celluloid becomes hardened to its originalform and at the same time shrinks slightl and thereby causes the quillto become tig tly wrapped about and engaged with the surface 2 of thearticle 1 in 4 firm engagement therewith, so that the quill thus formedthereon cannot be normally withdrawn or removed. Thus, the shrinkagecauses the quill to become firmly adhered to the surface of the articlebeing covered.

should there be any visual indication of ine ualities of the sheet alongthe cemented" line ormed by the jointure of the edges 6 and 7, asindicated by the dotted line 9, .Fig. 4-, the longitudinal seam therebyso formed may be polished or bufl'ed away, thus leaving the coatingwithout any obvious line of demarcation and substantially smooth on itsexterior.

Owing to the pliability of the softened .55 sheet, as above described,it is obvious that a large number of articles may be coated where itispossible .to aflix a single sheet thereabout, as herein described,andthat the subsequent shrinking thereof, during dryingand hard- .60ening of the softened shell, causes the sheet 7 or shell'to becomefirmly adhered to the body of the article or device to which it isaflixed. Its also obvious that porous or absorbent bodies may also be socovered, such as plain and that the shrinkage of the coating thereon,after application, will cause firm adherence to the body to which theshell is so afiixed without the use of any cement other than thecementing of the joints of the covering ma terial used.

It is also obvious, by this particular means, that highly ornamentaleffects may be obtained in a simple and inexpensive manner, upon devicesof this sort. Forinstance, the barrel 2 of the pencil may be of anysingle color, such as blue, black or brown which, of itself has nohighly ornamental effect, but the covering material thereover may betransparent, translucent or in imitation of semitransparent mother -ofpearl.

Thereafter, when the covering material is wrapped about the article tobe covered, as

herein described, the eifect of the under color of the body 1, showingthrough the trans-.

parent, translucent or semi-transparent mother of pearl coating, greatlyadds to the decorative. finish thereof which finish may thereafter behighly polished and makes a very effective and attractive covering.

It will be noted that the scarfing of the meeting edges 6 and 7 of thequill forming shell 5 is substantially in the form'of an overlap due tothe scarfing angle and when these two edges are properly cementedtogether, especially on material that is extremely thin, it increasesthe cementing surface of the edges, as noted, and forms an overlappedseam of great strength and sulficient to resist the shrinking tensionvof the rshell when it is dried and hardened upon the article aboutwhichit is wrapped.

What I claim is:

The method of covering parts of an article with a coating sheet,'whichconsists in forming a sheet of celluloid, having substantially the samelength as the part of the article to be covered therewith anda widthsubstantiallye ual to the periphery of the said part, then so ening thesheet, then wrapping the said sheet about the said part with thelongitudinal elements of the sheet positioned parallel to the length ofthe said part, thereby causing the lon 'tudinal edges of the sheet tomeet each ot er'in a line which is substantially parallel to the lengthof said part th'en cementing the edges of the coating sheet to eachother and thereupon permitting the said coating to harden and shrink onto'th( said part.

Signed at Yonkers in the county of West chester and State of New Yorkthis 21st day oftDecember A. D. 1928.

I GEORGEF. METZ.

-05 wooden pencils, either painted or unpainted,

